Victor popp



(No Model.)

V. POPP. ELECTED PNEUMATIC CLOCK.

No. 438,767. Patented Oct. 21, 1890.

ITNESSES UNITED STATES PATENT OFFICE.

VICTOR POPP, OF PARIS, FRANCE, ASSIGNOR TO THE POPP COMPRESSED AIR ANDELECTRIC POIVER COMPANY, LIMITED.

ELECTRO-PN EU MATIC CLOCK.

SPECIFICATION forming part of Letters Patent No. 438,767, dated October21, 1890.

Application filed April 7,1888. Serial No.269,990. (No model.) Patentedin France November 11, 1887, No. 186,823; in England November 18, 1887,Nos. 15,878, 15,878 and 15,878 in Germany December 24, 1887, Nos. 44,745and 47,546; in Belgium May 7, 1888, No. 81,725, and in Italy June80,1888,XLVI, 247.

T0 aZZ whom, it may concern.-

Be it known that I, VICTOR POPP, a citizen of the Republic of France,residing at the city of Paris, France, have invented certain new anduseful Improvements in Registers for Electric Circuits, of which thefollowing is a specification.

This invention is embodied in patents of the following countries: inFrance, dated November 11, 1887, No. 186,823; in England, dated November18, 1887, Nos. 15,878, 15,878, and 15,87 8 in Germany, dated December24, 1887, Nos. 44,745 and47,546; in Belgium, dated May 7, 1888, No.81,725, and in Italy, dated June 30, 1888, No. 247, Vol. XLVI.

My invention relates to a pneumatic register for electric circuits; andit consists in the combination, with a switch for closing an electriccircuit, of a pneumatic clock or registering device which is constantlyoperated from an independent supply of compressed air, and which isprovided with a cock attached to the switch, so that the air is admittedto the device simultaneously with the closing of the electric circuit.

In the accompanying drawings, illustrating my invention, Figure 1 is afront elevation of the apparatus, partly in section. Fig. 2 is a sideelevation, partly in section; and Fig. 3 is a section through the line 33, Fig. 1.

The pneumatic clock or registering device is similar in construction tothat shown in my patent, No. 275,701, dated April 10, 1883, and will becompletely understood by reference to said patent.

In the drawings, A represents the inclosing case attached to abase-board B.

K is a cylinder, in which is a small bellows L, connected with thesupply-pipe D for the compressed air. The free end of this bellows isconnected with lever P, pivoted at 8. Upon a projection from P ispivoted apawl O, which by means of weight C is held in engagement withtoothed wheel II. The wheel H engages with a train of wheels actuatingthe registering device T.

As is set forth in my above-mentioned patent, a periodic impulse ofcompressed air is transmitted to the device from a central supply. Eachimpulse expands bellows L, which acting through the mechanism describedadvances the register T a definite distance.

E is a cock in the pipe D, turned by the key F. Upon the spindle of thiscock is the switch for closing the electric circuit. This switchconsists of the contact-plates G upon opposite sides of a squared placeQ on the spindle, which are in electrical connection with each other,and which rest against the corresponding springs R, the terminals of thecircuit, and complete the electrical connection. The other two sides ofthis squared place on the spindle are of insulating material Q. Vhen aquarter-turn is given to the spindle, the cock E is closed, and at thesame time the springs R rest against the insulating sides of the spindleand the circuit is interrupted. By this means the switch which admitscurrent to the electric circuit at the same time admits air to theregistering device, and the air and current will be simultaneously shut08 from the device, and there will be no action of the register unlessthe current is passing. The time during which the current is used willthus be accurately recorded.

I claim 1. The combination, with an electric circuit, of apparatustherein, the operation of which it is desired to register, a switchcontrolling the circuit, a pneumatic registering device consisting of astep-by-step movement actuated by periodical impulses of compressed airfrom an external source, and a cock placed in the-supply-pipe of thesaid registering device and connected to the said switch, whereby theoperation of the apparatus in the electric circuit may beautomaticallylregistered.

2. The combination, in a pneumatic registering device for an electriccircuit, of a supply-pipe, a bellows or piston connected thereto, apawl-and-ratchet movement actuated by the piston or bellows, a registerdriven by said movement, a cockin the said supply-pipe, and a switchconnected to said cock and controlling an electric circuit.

VICTOR POPP. Witnesses:

Borer. W. BLAcKwELL, G. RENAULT.

